Access to predictions of individual trees in random forest regression model (Python)

[Mohammadali Tarrahi]

Hi,

Hope you are doing well and thank you in advance for your help.

I am building H2O random forest regression model in Python, and I wonder how I can get the predictions of individual trees or if I can get the prediction quantiles?

I have hard time finding the solution both in the documentations and the web.

Thanks for your awesome package btw!

Many thanks,

Mohammadali

[laurend]

Hi Mohammadali,

Here is a tutorial that you might find helpful in answering your question: https://github.com/h2oai/h2o-tutorials/blob/master/tutorials/display_tree_mojo/DisplayTreeMojoH2O.ipynb.

cheers,

Lauren

[Mohammadali Tarrahi]

Hi Lauren,

Thanks a lot for the help.

I have used this tutorial to visualize individual trees but I am interested in each tree's prediction value,

interestingly H2O outputs "predict_leaf_node_assignment" but it does not output individual prediction values.

[laurend]

reposting gitter response to this question for other to see:

H2O doesn't currently have an API that would expose the individual predictions. There is a PR that adds this capability to MOJO, but it still needs to be finished https://github.com/h2oai/h2o-3/pull/1845/files

- lauren